Measuring pattern and process of urban sprawl in South and Southeast Asian developing cities.

• Project/Area Number: 25420636
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Town planning/Architectural planning
• Research Institution: Kyushu University
• Principal Investigator: Divigalpitiya Prasanna 九州大学, 人間環境学研究院, 准教授 (70597997)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: urban expansion / southeast asia / scenario discovery / cellular automata / robust decision-making / urbanization / planning system / spatial analysis / Southeast Asian cities / sprawl / medium-sized cities / Urban Sprawl / Asian Cities

Outline of Final Research Achievements

The expansion of urban areas into adjoining administrative areas has a relationship with decentralization of decision-making process. Further studies need to understand the situation in larger cities. The main urban areas were growing faster than the suburban centers during last decade. This study also shows that the main urban area is expanding in agricultural lands than in low-density suburban areas. This may be due to the availability cheap land and the lack of control measures.
Several urban expansion patterns were identified in this research. The first pattern is the small urban patches in rural areas and along roads. The second one is the expansion of main urban area by encroaching into the surrounding area. The third process was infill growth. The third observation is the complexity of urban patches in the outskirts of the city.

Research Products

• [Journal Article] Measuring the Urban Expansion Process of Yogyakarta City in Indonesia (2015)
  • Author(s): Prasanna Divigalpitiya, K. Nurul Handayani
  • Journal Title: International Review for Spatial Planning and Sustainable Development Volume: 3 Issue: 4 Pages: 18-32
  • DOI: 10.14246/irspsd.3.4_18
  • NAID: 130005103749
  • ISSN: 2187-3666
  • Year and Date: 2015-10-15
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Scenario analysis: robust future growth policy analysis in western region of Sri Lanka (2016)
  • Author(s): Prasanna Divigalpitiya
  • Organizer: 13th International Conference on Design & Decision Support Systems in Architecture and Urban Planning
  • Place of Presentation: Eindhoven (Netherlands)
  • Year and Date: 2016-06-27
• [Presentation] Measuring Urban Expansion Process of Yogyakarta City in Indonesia (2014)
  • Author(s): Prasanna Divigalpitiya
  • Organizer: The 9th International Symposium on City Planning and Environmental Management in Asian Countries (AURG)
  • Place of Presentation: Oita, Japan
• [Remarks] Urban Dynamics
  • URL: http://udyn.arch.kyushu-u.ac.jp/#